Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
The car's computer is getting a signal that the sensor measuring the air temperature going into the turbocharger is too low. It's like your thermometer saying it's much colder than it actually is.
The P104F code is triggered when the Engine Control Module (ECM) detects a low voltage signal from the Turbocharger Air Temperature Sensor 1. This sensor helps the ECM to adjust the air-fuel mixture for optimal performance.
The Turbocharger Air Temperature Sensor 1 is responsible for measuring the temperature of the air entering the turbocharger. This information is used by the ECM to optimize engine performance and efficiency. A low circuit condition indicates that the sensor is reporting a temperature lower than expected, which could be due to a faulty sensor, wiring issues, or a problem with the ECM itself.
• Check Engine Light is on
• Reduced engine performance
• Poor fuel economy
• Faulty Turbocharger Air Temperature Sensor
• Wiring issues such as shorts or open circuits
• Faulty Engine Control Module (ECM)
Turbocharger: A device that increases an engine's efficiency and power output by forcing extra air into the combustion chamber.
ECM: Engine Control Module, the computer responsible for managing engine performance.
• Use an OBD-II scanner to confirm the code
• Inspect the wiring and connectors of the Turbocharger Air Temperature Sensor
• Test the sensor for proper operation
• Replace the Turbocharger Air Temperature Sensor
• Repair or replace damaged wiring
• Reprogram or replace the ECM if necessary
• OBD-II scanner
• Multimeter
• Basic hand tools
$100 - $300
Moderate
• Ford F-150
• Chevrolet Silverado
• Dodge Ram
• Regular maintenance and inspection of sensors
• Ensure proper wiring connections
• Avoiding extreme driving conditions that may affect sensors
Sensor Issue
• Get the vehicle checked by a professional mechanic
• Avoid driving at high speeds until the issue is resolved
Check with your manufacturer; sensor issues may be covered under the powertrain warranty.
This code is relatively uncommon and typically associated with vehicles that have turbocharged engines.
Moderate – It is recommended to address this issue soon to avoid potential engine performance problems.
Driving with a faulty sensor may lead to reduced engine performance and increased emissions, which could be against local regulations.
• Engine at operating temperature
• Vehicle in a stationary position
The Turbocharger Air Temperature Sensor is typically located near the intake manifold or turbocharger housing.
Q: Can I drive with a P104F code?
A: It's possible to drive with this code, but it's not recommended as it can lead to reduced performance and efficiency.
Q: How can I reset the P104F code?
A: You can reset the code with an OBD-II scanner, but it's important to fix the underlying issue first.
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